US Patent 9479549 Collaboration system with whiteboard with federated display

A system for whiteboard collaboration utilizes an array of displays for a whiteboard canvas. The displays in the array being coupled with a computer system having a communication module and memory storing collaboration data for at least one collaboration having a collaboration space. The array has a display area mapped to corresponding area in the collaboration space. The collaboration data includes data structures identifying displayable objects and associating a location in the collaboration space with the objects identified by the data structures. The computer system includes a display client for each display in the array. Each display client is configured to manage display of a predetermined portion of the display area, and for receiving and transmitting messages related to global collaboration events and for receiving and transmitting messages related to local array events.